ci: codecov: Store ccache data in node cache

This commit updates the codecov workflow to store ccache data in the
zephyr-runner v2 node cache.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

.github/workflows/codecov.yaml

@@ -29,6 +29,8 @@ jobs:
             normalized: 'qemu_x86'
           - platform: 'unit_testing'
             normalized: 'unit_testing'
+    env:
+      CCACHE_DIR: /node-cache/ccache-zephyr
     steps:
       - name: Apply container owner mismatch workaround
         run: |
@@ -72,30 +74,12 @@ jobs:
 
           echo "ZEPHYR_SDK_INSTALL_DIR=/opt/toolchains/zephyr-sdk-$( cat SDK_VERSION )" >> $GITHUB_ENV
 
-      - name: Prepare ccache keys
-        id: ccache_cache_prop
-        shell: cmake -P {0}
+      - name: Set up ccache
         run: |
-          string(REPLACE "/" "_" repo ${{github.repository}})
-          string(REPLACE "-" "_" repo2 ${repo})
-          file(APPEND $ENV{GITHUB_OUTPUT} "repo=${repo2}\n")
-
-      - name: use cache
-        id: cache-ccache
-        uses: zephyrproject-rtos/action-s3-cache@v1.2.0
-        with:
-          key: ${{ steps.ccache_cache_prop.outputs.repo }}-${{github.event_name}}-${{matrix.platform}}-codecov-ccache
-          path: /github/home/.cache/ccache
-          aws-s3-bucket: ccache.zephyrproject.org
-          aws-access-key-id: ${{ vars.AWS_CCACHE_ACCESS_KEY_ID }}
-          aws-secret-access-key: ${{ secrets.AWS_CCACHE_SECRET_ACCESS_KEY }}
-          aws-region: us-east-2
-
-      - name: ccache stats initial
-        run: |
-          mkdir -p /github/home/.cache
-          test -d github/home/.cache/ccache && mv github/home/.cache/ccache /github/home/.cache/ccache
-          ccache -M 10G -s
+          mkdir -p ${CCACHE_DIR}
+          ccache -M 10G
+          ccache -p
+          ccache -z -s -vv
 
       - name: Run Tests with Twister (Push)
         continue-on-error: true
@@ -108,10 +92,10 @@ jobs:
           ls -la
           ./scripts/twister -i --force-color -N -v --filter runnable -p ${{ matrix.platform }} --coverage -T tests --coverage-tool gcovr -xCONFIG_TEST_EXTRA_STACK_SIZE=4096 -e nano
 
-      - name: ccache stats post
+      - name: Print ccache stats
+        if: always()
         run: |
-          ccache -s
-          ccache -p
+          ccache -s -vv
 
       - name: Rename coverage files
         if: always()